`think-four.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:442e^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:baa7^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.68.46^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.186.167^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`everton.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cc9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`everton.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3c9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`everton.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23c9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`everton.ns.cloudflare.com`
		A	108.162.195.201^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`everton.ns.cloudflare.com`
		A	162.159.44.201^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`everton.ns.cloudflare.com`
		A	172.64.35.201^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`everton.ns.cloudflare.com`
NS	`sandy.ns.cloudflare.com`
		A	2606:4700:50::adf5:3adb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0db^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sandy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20db^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sandy.ns.cloudflare.com`
		A	108.162.192.219^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
		A	172.64.32.219^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
		A	173.245.58.219^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.68.46, 172.67.186.167
		IPv6	2606:4700:3033::6815:442e, 2606:4700:3037::ac43:baa7
SOA	`everton.ns.cloudflare.com`dns@cloudflare.com serial=2398035743

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291435

DNS History

10 records (6 active, 4 former)

●NSeverton.ns.cloudflare.com2026-03-23 → 2026-03-23 · 3 obs

○ 2017-01-10 18:22:12
● 2026-03-23 23:47:28
● 2026-03-23 23:47:30

○NSns1.think-four.com2015-08-07 → 2017-01-10 · 4 obs

● 2015-08-07 17:34:42
● 2017-01-10 18:22:12
○ 2026-03-23 23:47:28
○ 2026-03-23 23:47:30

○NSns2.think-four.com2015-08-07 → 2017-01-10 · 4 obs

● 2015-08-07 17:34:42
● 2017-01-10 18:22:12
○ 2026-03-23 23:47:28
○ 2026-03-23 23:47:30

●NSsandy.ns.cloudflare.com2026-03-23 → 2026-03-23 · 3 obs

○ 2017-01-10 18:22:12
● 2026-03-23 23:47:28
● 2026-03-23 23:47:30

○MXthink-four.com2015-08-07 → 2017-01-10 · 4 obs

● 2015-08-07 17:34:42
● 2017-01-10 18:22:12
○ 2026-03-23 23:47:28
○ 2026-03-23 23:47:30

●A104.21.68.462026-03-23 → 2026-03-23 · 3 obs

○ 2017-01-10 18:22:12
● 2026-03-23 23:47:28
● 2026-03-23 23:47:30

●A172.67.186.1672026-03-23 → 2026-03-23 · 3 obs

○ 2017-01-10 18:22:12
● 2026-03-23 23:47:28
● 2026-03-23 23:47:30

○A192.249.121.1462015-08-07 → 2017-01-10 · 4 obs

● 2015-08-07 17:34:42
● 2017-01-10 18:22:12
○ 2026-03-23 23:47:28
○ 2026-03-23 23:47:30

●A2606:4700:3033::6815:442e2026-03-23 → 2026-03-23 · 3 obs

○ 2017-01-10 18:22:12
● 2026-03-23 23:47:28
● 2026-03-23 23:47:30

●A2606:4700:3037::ac43:baa72026-03-23 → 2026-03-23 · 3 obs

○ 2017-01-10 18:22:12
● 2026-03-23 23:47:28
● 2026-03-23 23:47:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
think-four.com	sandy.ns.cloudflare.com, everton.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.201

NS records: sandy.ns.cloudflare.com, everton.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for think-four.com (unsigned zone)

⏱️ Timing

Total: 54ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.186.167, 104.21.68.46`
AAAA	2	`2606:4700:3037::ac43:baa7, 2606:4700:3033::6815:442e`
NS	2	`everton.ns.cloudflare.com, sandy.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`everton.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (sandy.ns.cloudflare.com, sandy.ns.cloudflare.com, sandy.ns.cloudflare.com...)

Analysis

IP Addresses

think-four.com refers to four IP numbers: 2606:4700:3033::6815:442e, 2606:4700:3037::ac43:baa7, 104.21.68.46 and 172.67.186.167.

Other host names, for instance xn--80azba7c.xn--p1ai, www.tamamo.site, api.dbdtwitch.com, guoshant.com and freecartoon(0x736578)blog.com share IP numbers with think-four.com.

Name Servers

think-four.com's delegation uses two name servers: everton.ns.cloudflare.com and sandy.ns.cloudflare.com.

think-four.com uses the same name server setup as other domains, such as thenewsliteracyproject.org, bcworld.org, whatisss.com, dwtimages.com and rental-referrals.com.

think-four.com at least partially shares name servers with other domains, including strlawoffice.pages.dev, uniqueyoga.site, ng-clinicas.com, knitwear-creator.com and teosoft.net.

These name servers are commonly used with rose.ns.cloudflare.com, jerry.ns.cloudflare.com and kenia.ns.cloudflare.com.

Host names with six IP numbers:

everton.ns.cloudflare.com points to 2606:4700:58::a29f:2cc9, 2803:f800:50::6ca2:c3c9, 2a06:98c1:50::ac40:23c9, 108.162.195.201, 162.159.44.201 and 172.64.35.201.

sandy.ns.cloudflare.com points to 2606:4700:50::adf5:3adb, 2803:f800:50::6ca2:c0db, 2a06:98c1:50::ac40:20db, 108.162.192.219, 172.64.32.219 and 173.245.58.219.

think-four.com - robtex.com

think-four.com

com

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`think-four.com`

`com`